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        Sodium tripolyphosphate (technical grade)STPP

        Application grade: technical grade
        Content: 94(%)
        Particle size: white powder(mesh)
        CAS RN: -
        Executive standard: GB9983-88
        Brand: Junlin
        as detergent auxiliary, in petroleum, metallurgy, mining, water treatment, etc.
        English name: sodium tripolyphosphate
        Alias: Pentasodium Tripolyphosphate
        Molecular formula: Na5P3O10
        Molecular weight: 367.86()
        Performance features: white particle or powder, apparent density 0.35-0.90g/cm3, melting point 622℃. Easily soluble in water, PH of 1% aqueous solution is 9.7.
        Uses: This product is mainly used as water softener for industrial water, dyeing auxiliary, or as dispersing agent for paint, kaolin, magnesium oxide, calcium carbonate, etc.
        Product quality: meets GB9983-2004 standard.
        Technical requirement:

        Technical index Index
        superior product First-class product Qualified product
        Sodium tripolyphosphate (Na5P3O10) %≥ 96 90 85
        Phosphorus pentoxide(P2O5) %≥ 57.0 56.5 55.0
        Water insoluble matter %≤ 0.10 0.10 0.15
        Iron (Fe) %≤ 0.007 0.015 0.30
        PH value (1% aqueous solution) % 9.2-10.0
        Whiteness %≥ 90 80 70
        Particle size1.00mm test sieve residue on sieve %≤      
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